GR3032937T3 - Method and apparatus for illumination and imaging of a surface employing light-emitting diodes. - Google Patents

Method and apparatus for illumination and imaging of a surface employing light-emitting diodes.

Info

Publication number
GR3032937T3
GR3032937T3 GR20000400633T GR20000400633T GR3032937T3 GR 3032937 T3 GR3032937 T3 GR 3032937T3 GR 20000400633 T GR20000400633 T GR 20000400633T GR 20000400633 T GR20000400633 T GR 20000400633T GR 3032937 T3 GR3032937 T3 GR 3032937T3
Authority
GR
Greece
Prior art keywords
imaging
illumination
ccd
lensing
emitting diodes
Prior art date
Application number
GR20000400633T
Other languages
Greek (el)
Inventor
Alexander Brandorff
John W Sussmeier
Original Assignee
United Parcel Service Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Parcel Service Inc filed Critical United Parcel Service Inc
Publication of GR3032937T3 publication Critical patent/GR3032937T3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/1092—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing by means of TV-scanning
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • G06K7/10732—Light sources

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Image Input (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Microscoopes, Condenser (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

An apparatus for illuminating and imaging a surface includes a two-dimensional array of LEDs for providing uniform illumination to the surface, the LEDs being mounted on a planar surface with a centrally defined aperture, and a CCD-based camera with appropriate lensing for obtaining an image of the illuminated surface and providing a signal representative of that obtained image to a processing unit, the CCD-based camera lensing being disposed through the centrally defined aperture in the planar surface of the LED array, and the LED array and CCD-camera lensing being disposed inside an opaque shroud.
GR20000400633T 1993-02-18 2000-03-10 Method and apparatus for illumination and imaging of a surface employing light-emitting diodes. GR3032937T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/019,220 US5408084A (en) 1993-02-18 1993-02-18 Method and apparatus for illumination and imaging of a surface using 2-D LED array
PCT/US1994/001661 WO1994019764A1 (en) 1993-02-18 1994-02-17 Method and apparatus for illumination and imaging of a surface employing light-emitting diodes

Publications (1)

Publication Number Publication Date
GR3032937T3 true GR3032937T3 (en) 2000-07-31

Family

ID=21792067

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20000400633T GR3032937T3 (en) 1993-02-18 2000-03-10 Method and apparatus for illumination and imaging of a surface employing light-emitting diodes.

Country Status (10)

Country Link
US (1) US5408084A (en)
EP (1) EP0685091B1 (en)
JP (1) JP2877517B2 (en)
AT (1) ATE188566T1 (en)
AU (1) AU6241094A (en)
CA (1) CA2156152C (en)
DE (1) DE69422499D1 (en)
ES (1) ES2141821T3 (en)
GR (1) GR3032937T3 (en)
WO (1) WO1994019764A1 (en)

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Also Published As

Publication number Publication date
CA2156152C (en) 1999-12-28
DE69422499D1 (en) 2000-02-10
WO1994019764A1 (en) 1994-09-01
ES2141821T3 (en) 2000-04-01
AU6241094A (en) 1994-09-14
US5408084A (en) 1995-04-18
JP2877517B2 (en) 1999-03-31
ATE188566T1 (en) 2000-01-15
EP0685091A1 (en) 1995-12-06
CA2156152A1 (en) 1994-09-01
EP0685091B1 (en) 2000-01-05
JPH08508356A (en) 1996-09-03

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